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TOPIC: Simulate surround sound from 2 channel pcm?

Simulate surround sound from 2 channel pcm? 3 years 8 months ago #21009

texaspledge Offline Fresh Boarder Posts: 2 Karma: 0	Hi, i'm contemplating the AVR HDA and have 1 concern. I have an Xbox 360 and over HDMI it can only output 2 channel pcm or 5.1 bit stream. So it occurred to me I could use the 8×8 plugin to simulate surround from those 2 change sources. Would this be possible?
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Simulate surround sound from 2 channel pcm? 3 years 8 months ago #21029

john.reekie
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Hi, i think the answer to your question is "it depends." If you want to do something like Dolby Prologic decoding, you can't do that. If you want to just send content from the front left and right to the surround speakers, you can do that. For example, you could route the front left to the surround left at say, -6 dB, the same for the right, and that would give you a sort of surround effect. It's not "proper" surround sound by any means, but would give you some signal to the surrounds when playing music, but something like surround sound effects wouldn't work.

Hope that helps

I am not miniDSP support.

"You must ask the right questions." - Dr. Alfred Lanning's hologram.
-> Have you read the User Manual??
-> Have you drawn and posted a diagram?
-> Have you posted a screenshot?
-> Have you posted your config file?

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The following user(s) said Thank You: devteam, texaspledge

Simulate surround sound from 2 channel pcm? 3 years 8 months ago #21074

devteam Online Administrator Posts: 8275 Thank you received: 975 Karma: 150	Very good answer from John already. You can't reproduce Prologic because it involves phase at crosspoints but you can do some level based routing though thanks to the matrix mixed. DevtTeam
	MiniDSP, building a DIY DSP community one board at a time. The administrator has disabled public write access. The following user(s) said Thank You: texaspledge

Simulate surround sound from 2 channel pcm? 3 years 8 months ago #21106

texaspledge Offline Fresh Boarder Posts: 2 Karma: 0	Much appreciated guys.
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Simulate surround sound from 2 channel pcm?